Dear all,
Recently, I am learning the MonetDB,I know that a MAL instrction is
corresponding to a C-function. such as a MAL instrction algebra.select() is
corresponding to ALGselectInclusive(); and the corresponding file is
algebra.mal, for example,
command select(b:bat[:any_1,:any_2], low:any_2,
high:any_2, li:bit, hi:bit) :bat[:any_1,:any_2]
address ALGselectInclusive
comment "Select all BUNs that have tail values: {v| low <{=} v <{=} high}.
Boundary inclusion is indicated separately.
NIL boundary values have a special meaning.
+ low == nil means: no lower bound
+ high == nil means: no upper bound.";
My question is ,in MonetDB souces code, how to corresponding the MAL to the
C-function, how to implement it ? and how to transfer the parameter from MAL to
C-function?
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